Hi Olga,

> Please see the rendering (EMAP)
> the left joint seems mirroring thus not smooth.
> I do not know it might me ok

I guess I'm not sure where you are seeing the lack of smoothness?

When zebra lines are all smooth like you show there, it means the surfaces have a high level of smoothness with each other.

If there is a problem there, I don't really see it!

Is it that you don't like the shape of the reflections? That would be something related to the shaping of the surface, a kind of different issue than "smoothness" between parts.

- Michael